CPC G01R 33/4818 (2013.01) [G01R 33/448 (2013.01); G01R 33/543 (2013.01); G01R 33/5613 (2013.01); G01R 33/56518 (2013.01)] | 20 Claims |
1. A computer implemented method for ungated magnetic resonance imaging, comprising:
producing magnetic resonance imaging (MRI) data corresponding to a target by scanning the target in a low magnetic field with a pulse sequence having a spiral trajectory;
sampling k-space data from respective scans in the low magnetic field and receiving at least one field map data acquisition and a series of MRI data acquisitions from the respective scans;
forming a field map and at least one sensitivity map in image space from the field map data acquisition;
forming target k-space data with the series of MRI data acquisitions with a Non-Uniform Fast Fourier Transform;
forming initial magnetic resonance images in the image domain by applying a gridding operation to the target k-space data; and
forming reconstructed images with a low rank plus sparse (L+S) reconstruction algorithm applied to the initial magnetic resonance images.
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